The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 2017
Filed:
May. 18, 2015
Applicant:
Samuel Kerhuel, Villeneuve Tolosane, FR;
Inventor:
Samuel Kerhuel, Villeneuve Tolosane, FR;
Assignee:
NXP USA, INC., Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 13/00 (2011.01); H04L 1/20 (2006.01); H04L 25/02 (2006.01); H04L 27/26 (2006.01); H04L 5/00 (2006.01);
U.S. Cl.
CPC ...
H04J 13/0062 (2013.01); H04L 1/20 (2013.01); H04L 5/00 (2013.01); H04L 25/022 (2013.01); H04L 25/0226 (2013.01); H04L 27/2647 (2013.01); H04L 5/0026 (2013.01); H04L 5/0048 (2013.01);
Abstract
An OFDM receiving apparatus is provided for estimating a signal-to-noise ratio of a code-division multiplexed sounding signal transmitted over a wide channel of a wireless communication system. The apparatus separately determines the noise power level and the signal power associated with the sounding signal. Namely, the noise power level is determined in the frequency domain based on a noise covariance matrix. Further, the sounding signal's power level is determined, in the time domain, based on power delay profile of the wide channel over which the sounding signal has been transmitted.